package com.zzyl.serve.service.impl;

import java.time.LocalDateTime;
import java.util.Arrays;
import java.util.List;
import java.util.Objects;

import cn.hutool.json.JSONUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.zzyl.common.exception.base.BaseException;
import com.zzyl.common.utils.CodeGenerator;
import com.zzyl.common.utils.bean.BeanUtils;
import com.zzyl.serve.domain.*;
import com.zzyl.serve.dto.CheckInApplyDto;
import com.zzyl.serve.dto.CheckInElderDto;
import com.zzyl.serve.dto.ElderFamilyDto;
import com.zzyl.serve.mapper.*;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.zzyl.serve.service.ICheckInService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.transaction.annotation.Transactional;

/**
 * 入住Service业务层处理
 * 
 * @author xiaozheng
 * @date 2025-08-16
 */
@Transactional(rollbackFor=Exception.class)
@Service
public class CheckInServiceImpl extends ServiceImpl<CheckInMapper, CheckIn> implements ICheckInService
{
    @Autowired
    private CheckInMapper checkInMapper;

    @Autowired
    private ElderMapper elderMapper;

    @Autowired
    private BedMapper bedMapper;

    @Autowired
    private CheckInConfigMapper checkInConfigMapper;

    @Autowired
    private ContractMapper contractMapper;

    /**
     * 查询入住
     * 
     * @param id 入住主键
     * @return 入住
     */
    @Override
    public CheckIn selectCheckInById(Long id)
    {
        return checkInMapper.selectById(id);
    }

    /**
     * 查询入住列表
     * 
     * @param checkIn 入住
     * @return 入住
     */
    @Override
    public List<CheckIn> selectCheckInList(CheckIn checkIn)
    {
        return checkInMapper.selectCheckInList(checkIn);
    }

    /**
     * 新增入住
     * 
     * @param checkIn 入住
     * @return 结果
     */
    @Override
    public int insertCheckIn(CheckIn checkIn)
    {
        return checkInMapper.insert(checkIn);
    }

    /**
     * 修改入住
     * 
     * @param checkIn 入住
     * @return 结果
     */
    @Override
    public int updateCheckIn(CheckIn checkIn)
    {
        return checkInMapper.updateById(checkIn);
    }

    /**
     * 批量删除入住
     * 
     * @param ids 需要删除的入住主键
     * @return 结果
     */
    @Override
    public int deleteCheckInByIds(Long[] ids)
    {
        return checkInMapper.deleteBatchIds(Arrays.asList(ids));
    }

    /**
     * 删除入住信息
     * 
     * @param id 入住主键
     * @return 结果
     */
    @Override
    public int deleteCheckInById(Long id)
    {
        return checkInMapper.deleteById(id);
    }

    @Override
    public int apply(CheckInApplyDto dto) {
        try {
            //1. 如果老人已经入住（老人身份证号已存在，且状态为1），则抛异常
            LambdaQueryWrapper<Elder> elderWrapper = Wrappers.<Elder>lambdaQuery().eq(Elder::getIdCardNo, dto.getCheckInElderDto().getIdCardNo());
            Elder elderDb = elderMapper.selectOne(elderWrapper);
            if (elderDb != null && Objects.equals(elderDb.getStatus(), 1)) {
                throw new BaseException("老人已入住");
            }
            //2. 更新床位状态为“已入住”（如果床位是未入住时才允许入住）
            Bed bed = bedMapper.selectById(dto.getCheckInConfigDto().getBedId());
            if (Objects.equals(bed.getBedStatus(), 1)) {
                throw new BaseException("床位已入住");
            }
            bed.setBedStatus(1);
            bedMapper.updateById(bed);
            //3. 保存老人信息
            //  将dto中老人的信息封装成Elder对象
            CheckInElderDto checkInElderDto = dto.getCheckInElderDto();
            Elder elder = new Elder();
            BeanUtils.copyProperties(checkInElderDto, elder);
            elder.setStatus(1);
            elder.setBedId(bed.getId());
            elder.setBedNumber(bed.getBedNumber());
            List<ElderFamilyDto> familyDtoList = dto.getElderFamilyDtoList();
            //将familyDtoList转换成json格式的字符串
            elder.setRemark(JSONUtil.toJsonStr(familyDtoList));
            if (elderDb == null) {
                //如果刚才从数据库中查询的老人为null：要新增老人信息
                elderMapper.insert(elder);
            } else {
                //要更新老人信息
                elder.setId(elderDb.getId());
                elderMapper.updateById(elder);
            }

            //4. 新增入住信息
            CheckIn checkIn = new CheckIn();
            checkIn.setElderName(elder.getName());
            checkIn.setElderId(elder.getId());
            checkIn.setIdCardNo(dto.getCheckInElderDto().getIdCardNo());
            checkIn.setStartDate(dto.getCheckInConfigDto().getStartDate());
            checkIn.setEndDate(dto.getCheckInConfigDto().getEndDate());
            checkIn.setNursingLevelName(dto.getCheckInConfigDto().getNursingLevelName());
            checkIn.setBedNumber(bed.getBedNumber());
            checkIn.setStatus(0);
            save(checkIn);

            //5. 新增入住配置
            CheckInConfig checkInConfig = new CheckInConfig();
            BeanUtils.copyProperties(dto.getCheckInConfigDto(), checkInConfig);
            checkInConfig.setCheckInId(checkIn.getId());
            checkInConfigMapper.insert(checkInConfig);

            //6. 新增签约信息
            Contract contract = new Contract();
            BeanUtils.copyProperties(dto.getCheckInContractDto(), contract);
            contract.setElderId(elder.getId());
            contract.setElderName(elder.getName());
            contract.setContractNumber("HT" + CodeGenerator.generateContractNumber());
            contract.setStartDate(dto.getCheckInConfigDto().getStartDate());
            contract.setEndDate(dto.getCheckInConfigDto().getEndDate());
            //  如果当前时间 不早于合同开始时间，且不晚于合同结束时间，说明在合同有效期内
            LocalDateTime now = LocalDateTime.now();
            boolean beInForce = !now.isBefore(contract.getStartDate()) && !now.isAfter(contract.getEndDate());
            contract.setStatus(beInForce ? 1 : 0);
            contractMapper.insert(contract);
            return 1;
        } catch (BaseException e) {
            throw new RuntimeException(e);
        }
    }
}
